[TowerTalk] TowerTalk Digest, Vol 195, Issue 31

[marko.n5zo at gmail.com]

Btw,
Does someone have part number and source (other than UST) for that rubber
belt used in  HDX589MDPL.
This winter I was once or twice cranking up tower after some rains and belt
was slipping on motor end.  
I immediately stopped and let it dry and it went up later without problem,
but I was thinking it may be good idea to get 
replacement belt and have it on hand if ever needed.
73 de Marko N5ZO

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Today's Topics:

   1. Re: Manually crank down a motorized tower (Dick Blumenstein)


----------------------------------------------------------------------

Message: 1
Date: Thu, 21 Mar 2019 09:43:25 -0400
From: Dick Blumenstein <rcblumen at centurylink.net>
To: Robert Harmon <k6uj at pacbell.net>
Cc: "towerTalk at Contesting.com" <towertalk at contesting.com>
Subject: Re: [TowerTalk] Manually crank down a motorized tower
Message-ID: <53d88577-3e44-12b3-d632-9f3895930999 at centurylink.net>
Content-Type: text/plain; charset=utf-8; format=flowed

Hello Bob-

I've got a 73' crank up tower and have thought about that, too.

I guess it depends on what failed. If the motor just died, you could, of
course, clamp the coupling shaft and then replace the motor. If the control
box failed, you could replace that. However, if the gear box failed and
locked up and wouldn't rotate, then you would have a much larger issue
assuming the tower is in the cranked up position. My initial thoughts would
be to cinch another wire cable onto the wire cable going up the tower with
multiple U-clamps and connect that wire cable to a come-a-long to the base
of the tower and pull down on the tower cable. That would alleviate the
tension on the motor/gear/drum assembly and allow you to fix/replace the
gearing mechanism.

Dick, K0CAT

=======================


Robert Harmon wrote on 3/20/2019 7:40 PM:
> I have a US Tower HDX589MDPL with the motorized drum.  I was wondering
what I would do in the event that something failed in the control box and I
needed to crank it down.
> The gearbox has a worm gear and I believe I could temporarily take off the
chain and turn the gear box sprocket by hand.  I would have to turn it until
the cows come home but I think I could crank it down.  Am I correct about
this ?  Have any of you had to crank down your motorized tower by hand ?
>
> Bob
> K6UJ
>
> _______________________________________________
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End of TowerTalk Digest, Vol 195, Issue 31
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